EP0277031A3 - Pegelschaltung für ein tragbares oder ähnliches Fernsprechgerät - Google Patents

Pegelschaltung für ein tragbares oder ähnliches Fernsprechgerät Download PDF

Info

Publication number: EP0277031A3
Authority: EP; European Patent Office
Prior art keywords: control circuit; volume control; portable telephone; signal; amplifier
Prior art date: 1987-01-30
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP88300775A

Other languages

English (en)

French (fr)

Other versions

EP0277031A2 (de

Inventor

Akio C/O Nec Corporation Saito

Masahiro C/O Nec Saitama Ltd. Ishigami

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NEC Corp

Original Assignee

NEC Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1987-01-30

Filing date

1988-01-29

Publication date

1990-04-25

1988-01-29 Application filed by NEC Corp filed Critical NEC Corp

1988-08-03 Publication of EP0277031A2 publication Critical patent/EP0277031A2/de

1990-04-25 Publication of EP0277031A3 publication Critical patent/EP0277031A3/de

Status Withdrawn legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/06—Hooks; Cradles
- H04M1/10—Hooks; Cradles associated with switches operated by magnetic effect due to proximity of receiver or hand-set
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
- H04M19/042—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations with variable loudness of the ringing tone, e.g. variable envelope or amplitude of ring signal

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Mobile Radio Communication Systems (AREA)
Control Of Amplification And Gain Control (AREA)
Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Circuit For Audible Band Transducer (AREA)

EP88300775A 1987-01-30 1988-01-29 Pegelschaltung für ein tragbares oder ähnliches Fernsprechgerät Withdrawn EP0277031A3 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP18189/87		1987-01-30
JP1818987		1987-01-30

Publications (2)

Publication Number	Publication Date
EP0277031A2 EP0277031A2 (de)	1988-08-03
EP0277031A3 true EP0277031A3 (de)	1990-04-25

Family

ID=11964671

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88300775A Withdrawn EP0277031A3 (de)	1987-01-30	1988-01-29	Pegelschaltung für ein tragbares oder ähnliches Fernsprechgerät

Country Status (5)

Country	Link
US (1)	US4924193A (de)
EP (1)	EP0277031A3 (de)
CN (1)	CN1005950B (de)
AU (1)	AU606915B2 (de)
CA (1)	CA1305924C (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0773387B2 (ja) *	1989-12-26	1995-08-02	日本電気株式会社	携帯電話装置
US5404582A (en) *	1992-11-27	1995-04-04	Motorola, Inc.	Aural annunciator circuit for a receiver
FI92782C (fi) *	1993-02-09	1994-12-27	Nokia Mobile Phones Ltd	Matkapuhelimien asetusten ryhmittely
JP2833964B2 (ja) *	1993-06-28	1998-12-09	日本電気株式会社	折畳型携帯電話機
WO1996015614A1 (en) *	1994-11-09	1996-05-23	Oki Telecom	Independent volume control for multi-system radio telephone
US5621359A (en) *	1995-07-27	1997-04-15	Lucent Technologies Inc.	Gain selection technique
US6006114A (en) *	1995-11-06	1999-12-21	Nokia Mobiles Phones Limited	Radiotelephone enabling adjustment of alerting indicator volume/level during incoming calls
US7116763B2 (en) *	1998-06-10	2006-10-03	Henry Sifuentes	Voice and motion activated telephone
US6298247B1 (en) *	1999-12-30	2001-10-02	Telefonaktiebolaget L.M. Ericsson (Publ)	Method and apparatus for automatic volume control
JP4406843B2 (ja) *	2006-02-17	2010-02-03	ソニー株式会社	車載機器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2716564A1 (de) *	1977-04-14	1978-10-19	Inst Rundfunktechnik Gmbh	Verfahren und anordnung zum steuern des lautstaerkepegels einer tonwiedergabeeinrichtung in einem rundfunk- oder fernsehempfaenger
WO1980001632A1 (fr) *	1979-02-01	1980-08-07	A Michel	Systeme de traitement de signaux a attenuateur electronique multivoies et a reglages memorises
FR2460575A1 (fr) *	1979-06-29	1981-01-23	Trt Telecom Radio Electr	Poste telephonique d'abonne a niveau d'ecoute reglable
GB2135841A (en) *	1983-02-28	1984-09-05	Gen Electric	Control arrangement for radio apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3079559A (en) *	1960-11-07	1963-02-26	Charles W Sehy	Automatic automobile radio volume adjuster
AU3017377A (en) *	1976-11-02	1979-05-10	Planned Music Ltd	Volume controls
JPS5841003B2 (ja) *	1978-08-26	1983-09-09	ビ−バ株式会社	自動音量調整装置
JPS5868329A (ja) *	1981-10-17	1983-04-23	Nippon Telegr & Teleph Corp <Ntt>	自動車電話機の受話音量切換装置
JPS5893068A (ja) *	1981-11-30	1983-06-02	Fuji Xerox Co Ltd	複写機の表示装置
JPS59179089A (ja) *	1983-03-31	1984-10-11	Agency Of Ind Science & Technol	酢酸の製造方法
JPS60204109A (ja) *	1984-03-28	1985-10-15	Mitsubishi Electric Corp	電子ボリウム制御装置
EP0203132A1 (de) *	1984-11-23	1986-12-03	WARRACK, Andrew	Abschwächer akustischer signale

1988
- 1988-01-28 US US07/149,626 patent/US4924193A/en not_active Expired - Fee Related
- 1988-01-29 EP EP88300775A patent/EP0277031A3/de not_active Withdrawn
- 1988-01-30 CN CN88100532.0A patent/CN1005950B/zh not_active Expired
- 1988-02-01 CA CA000557804A patent/CA1305924C/en not_active Expired - Fee Related
- 1988-02-01 AU AU11163/88A patent/AU606915B2/en not_active Ceased

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2716564A1 (de) *	1977-04-14	1978-10-19	Inst Rundfunktechnik Gmbh	Verfahren und anordnung zum steuern des lautstaerkepegels einer tonwiedergabeeinrichtung in einem rundfunk- oder fernsehempfaenger
WO1980001632A1 (fr) *	1979-02-01	1980-08-07	A Michel	Systeme de traitement de signaux a attenuateur electronique multivoies et a reglages memorises
FR2460575A1 (fr) *	1979-06-29	1981-01-23	Trt Telecom Radio Electr	Poste telephonique d'abonne a niveau d'ecoute reglable
GB2135841A (en) *	1983-02-28	1984-09-05	Gen Electric	Control arrangement for radio apparatus

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
N.E.C. RESEARCH AND DEVELOPMENT, no. 84, January 1987, pages 85-93, Tokyo, JP; T. KAI et al.: "Cellular mobile radio equipment" *
PATENT ABSTRACTS OF JAPAN, vol. 10, no. 50 (E-384)[2107], 27th February 1986; & JP-A-60 204 109 (MITSUBISHI DENKI K.K.) 15-10-1985 *
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 158 (E-186)[1303], 12th July 1983; & JP-A-58 068 329 (NIPPON DENSHIN DENWA KOSHA) 23-04-1983 *

Also Published As

Publication number	Publication date
CN1005950B (zh)	1989-11-29
CA1305924C (en)	1992-08-04
US4924193A (en)	1990-05-08
EP0277031A2 (de)	1988-08-03
AU606915B2 (en)	1991-02-21
CN88100532A (zh)	1988-09-14
AU1116388A (en)	1988-08-04

Legal Events

Date	Code	Title	Description
1988-06-18	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1988-08-03	17P	Request for examination filed	Effective date: 19880223
1988-08-03	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): GB NL SE
1990-03-08	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1990-04-25	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): GB NL SE
1993-03-10	17Q	First examination report despatched	Effective date: 19930126
1994-10-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1994-11-30	18D	Application deemed to be withdrawn	Effective date: 19940607

Publication	Publication Date	Title
EP0231721A3 (de)	1989-05-17	Automatische Verstärkungsregelung für Hörgerät
EP0143591A3 (de)	1988-01-07	Abfühlverstärker
DE68918227D1 (de)	1994-10-20	Audioverstärker mit Stumm- und Bereitschaftzustand.
EP0277031A3 (de)	1990-04-25	Pegelschaltung für ein tragbares oder ähnliches Fernsprechgerät
CA2020870A1 (en)	1991-01-19	Radio telecommunication apparatus
EP0287524A3 (de)	1990-12-27	Dynamische Steuerung einer Mischstufe
JPS5341218A (en)	1978-04-14	Speaker protecting circuit
EP0535425A3 (en)	1993-11-10	Method for amplifying an acoustic signal for the hard of hearing and device for carrying out the method
JPS56120207A (en)	1981-09-21	Audio equipment for car
JPS5784628A (en)	1982-05-27	Mobile radio device
JPS57111806A (en)	1982-07-12	Tape recorder
JPS5514774A (en)	1980-02-01	Output limit amplifier circuit
JPS56146381A (en)	1981-11-13	Television voice receiving device
JPS57186900A (en)	1982-11-17	Acoustic device
JPS5426608A (en)	1979-02-28	Howling prevention unit
JPS55113104A (en)	1980-09-01	Magnetic recording and reproducing device
JPS55140311A (en)	1980-11-01	Sound volume automatic control unit of noise control type speaker
JPS56110317A (en)	1981-09-01	Sound volume controller
JPS5237479A (en)	1977-03-23	Signal selection circuit
JPS563414A (en)	1981-01-14	Sound recorder/reproducer
JPS5366143A (en)	1978-06-13	Power amplifier circuit
JPS57100670A (en)	1982-06-22	Tape recorder
JPS5786979A (en)	1982-05-31	Word processor
JPS5383526A (en)	1978-07-24	Receiving device for multiple information signal
JPS6432535A (en)	1989-02-02	On-vehicle audio equipment